CN204488333U - A kind of blackboard eraser - Google Patents
A kind of blackboard eraser Download PDFInfo
- Publication number
- CN204488333U CN204488333U CN201520203363.5U CN201520203363U CN204488333U CN 204488333 U CN204488333 U CN 204488333U CN 201520203363 U CN201520203363 U CN 201520203363U CN 204488333 U CN204488333 U CN 204488333U
- Authority
- CN
- China
- Prior art keywords
- powder box
- brush
- blackboard eraser
- lid
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of blackboard eraser, by powder box, fixed bar, motion bar, brush, bobbing machine, battery case, loose-leaf and lid composition, brush is divided into left and right two halves version, the brush of the right and left is all provided with motion bar, motion bar is fixed on the upper end of fixed bar, the lower end of fixed bar is fixed on powder box, the half of brush embeds in powder box, second half is placed in outside powder box, powder box inwall is provided with bobbing machine, powder box bottom design has battery case, battery case connects bobbing machine by circuit, the face of growing tall of powder box is designed with lid, lid is connected with powder box by loose-leaf, the blackboard eraser of this utility model, the function of two-sided use can be realized, the function of lower ash automatically can be realized simultaneously.
Description
Technical field
The utility model relates to realia field, particularly a kind of blackboard eraser.
Background technology
The composition of chalk is alkaline matter.Harmful levels of pathogens, alkaline matter is to the respiratory system of Faculty and Students, and skin, ear, nose, throat easily causes inflammation, and dry, atrophy, scratches where it itches, and chaps, lung cancer, pulmonary emphysema and kidney damage.Student undertakes the task of erasing the board again from morning to night in classroom, the health hazard of chalk dust to the poor minority student of resistance is larger, key except chalk dust: chalk dust flies upward the chalk dust that mainly blackboard eraser adheres to and can not effectively be eliminated and collect, and causes and repeatedly flies upward pollution for a long time.It is low that electric blackboard eraser mainly overcomes current blackboard eraser efficiency, the drawbacks such as dust from flying.Use it that teachers and students can be made to be wiped clean by letter written with chalk easily, and fulsome chalk dust can not be produced, greatly change the sanitation and hygiene inside and outside classroom, useful teachers and students healthy and create an excellent teaching environment to them.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of function that can realize two-sided use, can realize the blackboard eraser of the function of lower ash automatically, to solve the above-mentioned multinomial defect caused in prior art simultaneously.
For achieving the above object, the utility model provides following technical scheme: a kind of blackboard eraser, by powder box, fixed bar, motion bar, brush, bobbing machine, battery case, loose-leaf and lid composition, brush is divided into left and right two halves version, the brush of the right and left is all provided with motion bar, motion bar is fixed on the upper end of fixed bar, the lower end of fixed bar is fixed on powder box, the half of brush embeds in powder box, second half is placed in outside powder box, powder box inwall is provided with bobbing machine, powder box bottom design has battery case, battery case connects bobbing machine by circuit, the face of growing tall of powder box is designed with lid, lid is connected with powder box by loose-leaf.
Preferably, described powder box inwall scribbles polytetrafluorethylecoatings coatings.
Preferably, the upper edge of described lid is provided with rubber weather strip.
Preferably, described brush is equipped with the dust cover with its form fit, dust cover independence blackboard eraser.
Preferably, the making material of described brush is high recovery sponge.
The beneficial effect of above technical scheme is adopted to be: powder box inwall scribbles polytetrafluorethylecoatings coatings, and such design can prevent chalk dust from assembling at powder box inwall; The upper edge of lid is provided with rubber weather strip, and such design can increase the seal of powder box, and prevent in vibrations process, powder ash is excessive; Brush is equipped with the dust cover with its form fit, dust cover independence blackboard eraser, and such design is the anti-gray when blackboard eraser leaves unused on the one hand, prevents the dust of brush to be diffused in air on the other hand; The making material of brush is high recovery sponge, and many hollow structures of sponge can maximum attract dust, simultaneously not yielding, extends the service life of blackboard eraser.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1---powder box, 2---fixed bar, 3---motion bar, 4---brush, 5---bobbing machine, 6---battery case, 7---loose-leaf, 8---lid.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows the detailed description of the invention of a kind of blackboard eraser of the utility model: a kind of blackboard eraser, by powder box 1, fixed bar 2, motion bar 3, brush 4, bobbing machine 5, battery case 6, loose-leaf 7 and lid 8 form, brush 4 is divided into left and right two halves version, the brush 4 of the right and left is all provided with motion bar 3, motion bar 3 is fixed on the upper end of fixed bar 2, the lower end of fixed bar 2 to be fixed on powder box 1, the half of brush 4 embeds in powder box 1, second half is placed in outside powder box 1, brush 4 is equipped with the dust cover with its form fit, dust cover independence blackboard eraser, such design is the anti-gray when blackboard eraser leaves unused on the one hand, the dust of brush is prevented to be diffused in air on the other hand, the making material of brush 4 is high recovery sponge, many hollow structures of sponge can maximum attract dust, simultaneously not yielding, extend the service life of blackboard eraser, powder box 1 inwall is provided with bobbing machine 5, powder box 1 inwall scribbles polytetrafluorethylecoatings coatings, such design can prevent chalk dust from assembling at powder box inwall, powder box 1 bottom design has battery case 6, battery case 6 connects bobbing machine 5 by circuit, the face of growing tall of powder box 1 is designed with lid 8, the upper edge of lid 8 is provided with rubber weather strip, such design can increase the seal of powder box, prevent in vibrations process, powder ash is excessive, lid 8 is connected with powder box 1 by loose-leaf 7.
Above-described is only preferred embodiment of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. a blackboard eraser, it is characterized in that: by powder box, fixed bar, motion bar, brush, bobbing machine, battery case, loose-leaf and lid composition, brush is divided into left and right two halves version, the brush of the right and left is all provided with motion bar, motion bar is fixed on the upper end of fixed bar, the lower end of fixed bar is fixed on powder box, the half of brush embeds in powder box, second half is placed in outside powder box, powder box inwall is provided with bobbing machine, powder box bottom design has battery case, battery case connects bobbing machine by circuit, the face of growing tall of powder box is designed with lid, lid is connected with powder box by loose-leaf.
2. blackboard eraser according to claim 1, is characterized in that: described powder box inwall scribbles polytetrafluorethylecoatings coatings.
3. blackboard eraser according to claim 1, is characterized in that: the upper edge of described lid is provided with rubber weather strip.
4. blackboard eraser according to claim 1, is characterized in that: described brush is equipped with the dust cover with its form fit, dust cover independence blackboard eraser.
5. blackboard eraser according to claim 1, is characterized in that: the making material of described brush is high recovery sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203363.5U CN204488333U (en) | 2015-04-07 | 2015-04-07 | A kind of blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203363.5U CN204488333U (en) | 2015-04-07 | 2015-04-07 | A kind of blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204488333U true CN204488333U (en) | 2015-07-22 |
Family
ID=53567623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520203363.5U Expired - Fee Related CN204488333U (en) | 2015-04-07 | 2015-04-07 | A kind of blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204488333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802972A (en) * | 2019-12-16 | 2020-02-18 | 安徽信息工程学院 | Mechanical blackboard eraser |
-
2015
- 2015-04-07 CN CN201520203363.5U patent/CN204488333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802972A (en) * | 2019-12-16 | 2020-02-18 | 安徽信息工程学院 | Mechanical blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |